8878789 has 2 divisors, whose sum is σ = 8878790. Its totient is φ = 8878788.

The previous prime is 8878711. The next prime is 8878799. The reversal of 8878789 is 9878788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5602689 + 3276100 = 2367^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 8878789 - 2⁹ = 8878277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8878799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4439394 + 4439395.

It is an arithmetic number, because the mean of its divisors is an integer number (4439395).

Almost surely, 2^8878789 is an apocalyptic number.

It is an amenable number.

8878789 is a deficient number, since it is larger than the sum of its proper divisors (1).

8878789 is an equidigital number, since it uses as much as digits as its factorization.

8878789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1806336, while the sum is 55.

The square root of 8878789 is about 2979.7296857265. The cubic root of 8878789 is about 207.0703472387.

Subtracting 8878789 from its reverse (9878788), we obtain a palindrome (999999).

The spelling of 8878789 in words is "eight million, eight hundred seventy-eight thousand, seven hundred eighty-nine".